Automatic gas-extinguisher.



No. 738,579. 'PATENTED SEPT. 8, 1903.

V. A. STROM.

AUTOMATIC GAS EXTINGUISHER.

APPLICATION FILED MAR. 19, 1903.

N0 MODEL.

' we maimvs warns co. PHOTO-LUNG wumncrrou. nv c p in which ive.738,579.

UNITED STATES i atented september 8, 1903.

PATENT OFFICE. l

VICTOR A. STROM, OF ALAMEDA, CALIFORNIA, ASSIGNOR OF THREE- FOURTHS TOCARL E. STROM, EDWARD R. TABER, AND FRANK H. FARMER, OF ALAMEDA,CALIFORNIA.

AUTOMATIC GAS-EXTINGUISHER.

. .ePEcmIcA'rIoN forming' 'part of Letters P'atent No. 738,579, datedSeptember s, 1903.

' Application filed March 19, 1903- To rzZZ whom it may concern.-

Be it known that I, VICTOR A. STROM, a citizen of the UnitedStates,"residing at Alameda, county of Alameda,State of California, haveinvented an Improvement in Automatic Gas- Extinguishers; and I herebydeclare the following to be a full, clear, and exact descripcock'will beretained open while the gas remains lighted and the heat rises, but ifby any means the gas should become extin- .guished the weight of thedisk is suflicient,

when not acted upon bythe heat, to release the gas-cock lever and allowit to be automatically closed by weight or spring.

My invention also comprises details of construction, which will be morefully explained by reference to the accompanying drawings,

Figure 1 is a side elevation of my invention, dotted lines fshowingvalve opened. Fig. 2 is a side elevation from the other side of same.

4 represents a gas burner or jet, and .11 represents a cock, which maybe turned in one direction to allow the gas to flow and in the oppositedirection to cut off the flow. I

have shown this cock having a lever 9 extending from it, with a chain orpulling-cord disk A will raise it, tilting the lever 2,

Serial No. 148,582. (No model.)

outer end is approximately horizontal if it be lifted the bottom of thelever will be caused to move outwardly with relation to a linevertically through the fulcrum-point 7. The end of this lever 6 has anotch formed in it, as at 8, and this notch is normally in such positionthat when the gas-cock is opened one end of the lever 9 will be pulleddown and the other will be raised correspondingly, so

as to rest in the notch 8 of the lever 6, where it remains and retainsthe gas-cock open after the gas has been lighted. The manner in whichthis is effected is as follows: A is a large mica or equivalent non-adjustable disk, preferably made concavo-conveX or umbrella shape, and thisis fixed to a lever-arm 2, which is fulcrumed, as here shown, at the topof a standard 3, suitably supported from the gas-fixture or otherconvenient adjacent point. The lever 2 extends beyond the fulcrum-pointon the side opposite to the disk and has a counterweight 10, adjustableupon it. The lever 2 is connected by a rod 5 with the lever-arm 6, asshown. When the gas is 1i ghted, the rising heat from the flame strikingthe and by means of the connecting-rod 5 the lever B is correspondinglymoved. This causes the notched end at S to swing forward into line withthe vertically-moving gas-cock lever 9, and the lowerside of the notch 8will thus 8o engage the lifted arm of said lever and prevent it fromagain dropping. As long as the gas is burning the action of the risingheat upon the disk above maintains the parts inthis condition, but if byaccident or otherwise 8 5 the gas should be extinguished the weight ofthe disk A is sufficient to overcome the counterbalanced opposite end ofthe lever 2 and might be employed. It will also be understood that abell-crank lever suitably ful-v crumed and having a notched end would bean equivalent for the lever 6, as herein described.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. A gas-cock-controllingdevice consisting of alever by which the cockis normally closed, a disk mounted upon a fulcrumed tiltable lever inline above the gas jet or burner, said disk being raised by the movementof the heated air from the flame, a fulcrumed catch, connections betweenit and the disk-lever whereby the catch is projected to engage the of acounterweighted lever connected with the cock and adapted to open itwhen turned to raise the weighted end, a fulcrumed notched lever adaptedto engage the gas-cock lever and hold it open, a disk located in lineabove the burner, a fulcrumed lever to the end of which the disk isfixed, connection between the fulcrumed lever and the catch leverwhereby the raising of the disk by the heated gases while ignited actsto project the catch so as to maintain the gas-cock open said catchbeing retracted to release the gas-cock and allow it to be closed whenthe gas isextinguished and the heat ceases to act upon the disk.

In witness whereof I have hereunto set my hand.

VICTOR A. STROM. \Vitnesses v J OHN DURSTON, CHARLES PAEVEY.

